一种用于低压电力线通信的信道估计算法仿真  

Simulation on a Channel Estimation Method in Power Line Communication Systems

作　　者：董静薇[1] 袁清秀[1] 

机构地区：[1]哈尔滨理工大学测控技术与通信工程学院,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2008年第4期21-23,28,共4页Journal of Harbin University of Science and Technology

摘　　要：针对低压电力线通信中的信道估计问题,应用正交频分复用(OFDM)技术,在现有的OFDM通信信道估计算法的基础上,提出一种基于小波滤波器判决反馈的信道估计算法.该算法无需额外发送参考消息,提高了信道的利用率,而且小波滤波器能够达到去噪声的目的,具有良好的估计性能.对该算法进行了理论分析和初步的仿真实验,给出了仿真方法及结果.Aiming at the channel estimation in power line communication, adopted OFDM and based on channel estimation methods existed, an algorithm of channel estimation decision based on wavelet filter judge feedback is studied in this paper. The algorithm needs no transmit extra reference news and then improves the efficiency of channel. With the wavelet filter existing, noise can be eliminated and good estimation effect can be achieved. This paper carries on the theoretical analysis and the preliminary simulation experiment to the algorithm, the method and results of simulation are given.

关 键 词：低压电力线通信 信道估计 正交频分复用 

分 类 号：TN219[电子电信—物理电子学]